Package Included: 1 * Thermohygrometer 1 * User Manual 1 * Hand rope Description: Range Temperature: -10°~50°c (14°F~122°F); Humidity: 20%~99%RH Accuracy: Temperature 0.1°c (0.1°F); Humidity: 0.1%RH Error: Temperature: ±0.5°C (±32.9F); Humidity: ±5%RH Power supply specifications:AAA battery*2not contain Wireless connection type: Wifi APP: Tuya Smart Specifications: Mini temperature and humidity Monitorwider range of use Our temperature and humidity sensor is mini-sized andweighs only 21g, saving space. And it comes with a lanyardso you can hang it anywhere you want Smart App Control TUYA Wifi Thermometer Hygrometer can help youmonitor the changes in temperature and humidity in real-time , supporting smart functionssuch as remote monitoring andtemperature and humidity charts. High Accuracy The Thermo-hygrometers always provide you with the latest andmostaccurate temperature and humidity changesTemperatureaccuracy ( error value ) is 0.54F / 0.3C ,and humidity accuracy ( error value ) is 3% RH Data Display You can view the recent temperature andhumidity records on the APP , and the histogramand curve graph provide a clear data change trajectory .